Newsgroups: comp.parallel.pvm
From: butler@byu.edu (Kevin J. Butler)
Subject: Re: hosts config file
Organization: Novell, Inc.
Date: 24 Jul 1996 09:01:09 -0600
Message-ID: <uraq1vgp6.fsf@kbutler_pc.orem.novell.com>


	Eric Schmitt (erics@umbc.edu) wrote:


	: Hi,

	:    I have not been able to use the config file to change the relative speed
	: of hosts as I add them.  It seems to work if I use xpvm, but when I do
	: conf under pvm the host speeds are all 1000.

	:    I have a .xpvm_hosts file in $HOME.  I also have a .pvm_hosts file there.

	: Has anyone else been able to change the relative speed of hosts, and if so,
	: how?

	: Thanks,

	: 	Eric

Taken from the FAQ:
F:What does ``speed'' in the machine configuration mean?
F:
F:It was part of the outline of a load-balancing mechanism, but it's not currently used. The idea was that if you're
F:running more than one task per host in the virtual machine, the faster machines should get more tasks. The
F:scheduler used by pvm_spawn() should look at the speeds and current loads when assigning new tasks to hosts.
F:You can actually set the speed of each host (which defaults to 1000) to a value from  by using
F:the host file sp= option. 
F:
F:It's possible to write a wrapper function for spawn that reads the host configuration and list of running tasks and
F:makes such a decision. If you're really serious about it, think about writing a resource manager. 
F:
F:
F:Fri Mar 3 15:08:11 EST 1995

:-(

kb
-- 
--
Kevin J. Butler -- butler@byu.edu

